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How will the world end?

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How will the world end?

Scientists from the Global Challenges Foundation and the Future of Humanity Institute have created a list of the most likely ways the world will end. CNN's Richard Roth explains why he'll be hiding in his office until then.

How will the world end?

Scientists from the Global Challenges Foundation and the Future of Humanity Institute have created a list of the most likely ways the world will end. CNN's Richard Roth explains why he'll be hiding in his office until then.